As a measles outbreak in West Texas continues to grow, the response from US Health and Human Services Secretary Robert F. Kennedy Jr. has leaned heavily on treatment with vitamin A, as well as “good results” from the use of the steroid budesonide,

A dose of the measles vaccine is seen on a table at a health center in Lubbock, Texas, on Feb. 27, 2025. A dose of the measles vaccine is seen on a table at a health center in Lubbock, Texas, on Feb.

The measles outbreak in Texas appears to have spread into neighboring New Mexico, a fact that U.S. Health and Human Services Secretary Robert F. Kennedy Jr. dubbed concerning. Cases have also been detected in other states.